Method and apparatus for handling continuous yarns and the like



Aug. 24, 1948. F. w. KOSTER 2,447,982

. IETHOD AND APPARATUS FOR HANDLING CONTINUOUS YARNS AND THE LIKE FiledApril 17, 1945 Ill/02a. 9

7 I IV;ENTOR.

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' is made during such Patented Aug. 24, 1948 amass METHOD AND CONTINUOUSYARNS AND Frederick W. Koster,

to American Viscose APPARATUS FOR HANDLING THE LIKE walllngford; Pa...assignor Corporation, Wilmington,

Del., a corporation of Delaware Application April 17, 1945, Serial No.588,835 7 Claims. (Cl. 242- 1) The present invention relates to methodsand apparatus for the disposition or deposition of filamentary materialof continuous nature; such as yarns. tows, cords, single continuousfilaments, and the like.

For certain purposes, it is' desirable to deposit continuous filamentarymaterial in the form of over-lapping loops or coils. For example, acontinuous yarn may be deposited in a series of loops which are made toover-lap by virtue of relative motion of the surface upon which thedeposit time as the deposit is made. For example, yarns which need to betreated with fluids or liquids may advantageously be disposed on theupper surface of a continuously moving conveyor, especially offoraminous character, to present the yarn in an exposed and yet compactcondition so that effective liquid treatment can be convenientlyperformed upon the yarn.

The primary object of the present invention is to provide a novel andeflicient method and ap- I paratus for depositing a continuous material,such as a yarn, in the form of a heaped coilupon a stationary surface orin the form of numerous staggered, partially over-lapping loops upon acontinuously traveling surface. These and other objects of the inventionare accomplished generally by a special method of utilizing a fluid yarnfeeding and depositing stream. The stream preferably has a high velocityand travels in the direction it is desired to feed the yarn or othermaterial where the material is first introduced into the stream so thatby virtue of the suction produced at the point of entrance of materialinto the stream, the material is continuously drawn through the streammainly by virtue of the flowing action of the of the channel, the streamis discharged into the atmosphere in a direction making an angle to thatplane which contains the approximate direction of entrance of the strandinto the stream and radiates from such direction to the position ofdischarge so that the discharge of the fluid stream causes rotation ofthe stream about the portion thereof which the material enters as anaxis, the'material being discharged by the stream in proximity to thereceiving surface in an approximately circular pattern.

The single figure of the drawing discloses a simple form of apparatusembodying the invention, partially in cross-section, with the receivingsurface shown in perspective as viewed from above. 7

Referring more particularly to the drawing, the

stream. From the last portion guide, such as 92- the material thereonpasses material 2 to be handled passes over a suitable roller 3,downwardly into the mouth 4 of the depositing device which comprises anouter housing ii within which there is rotatably mounted. as on abearing 6 of anti-friction type preferably, an annular block 1 into thebore of which, the mouth piece 8 extends partially. I

A suitable annular seal 8 may be provided to prevent excessive leakageof the fluid past the hearing. The fluid may be introduced by theconnection l0 and flows into the bore through the annular block 1 in thedirection of travel of the entering material as controlled by theflaring mouthpiece 8. The block I has a tube H depending therefrom. Thetube communicates with the bore within the block. I and has a bend at I!and a second bend at, I3. The terminal portion of the tube from the-bend"has a discharge opening lland extends at an angle to the axis of thebore of the block I and at an angle to any line radiating from such axisto. the terminal portion so that discharge-of 'thefluid repels the tubein a direction away from thedischarge opening l4. Such repulsion causesrotation of the tube and the block as a unit so that the materialdischarged from the tube onto the receiving surface l5, such as a belt,takes the form of approximately a circles Thus, as long as a fluidmedium is introduced through the connection It, the material 2 will bedrawn-into the device and forced through thetube which is continuouslyrotated by the effect of the portion of the fluid stream beingdischarged with the filamentary material through the exit ll.

While the receiving surface is shown in the drawing as a continuouslytraveling belt which may conduct the deposited material through liquidtreatment stages, it may instead take the form of an annular rimportion'of a rotating wheel or disk, which shortly after depositing ofunder liquid or fluid treatment sprays or the like. The material; aftertreatment, may be withdrawn from thereceiving surface in any suitablemanner.

The filamentary material may proceed from any suitable source, such as awound package of the material to be treated. Alternatively, it mayproceed directly from an artificial fiber or lilament spinning machineeither as a single continuous filament or as a bundle of a multiplicityof such filaments either twisted or For example, the invention isparticularly useful for the disposition of yarns of regeneratedcellulose, cellulose derivatives, casein or otherproteins, polymers,copolymers, and condensation untwisted.

products, such as vinyl resins and the nylons. channel havingastrandentrance in approximate The material to be treated 'may of course bealignment with the axis of rotation and a strand composed of naturalfibers, such as yarns of cotdischarge portion offset from its strandentrance, ton, wool, silk, and the like. strands of matethe dischargeportion being arranged to extend rial not necessarily of textilecharacter, such as t an angle t l planes which t i t n, ropes. cablesand Wires may a so be handled by f rotation and radiate therefrom to thedischarge he Pres nt inv n n provided they are mportion, and means forforcing a fluid stream cien tly flexible.

as it does the use of a fluid medium for con- 10. strand djgchargeportion of th channeL rla ht twisting is also efl' t d t this 18 channelhaving a strand entrance in approximate removed when the coils arewithdrawn from the alignment mm the axis of mu and a strand receivinsurface. The fluid for the conveyin discharge portion offset from itsstrand entrance,

stream m y suitably be air or other 8 Altefthe discharge portion beingarranged to extend treat the material simultaneously with its dep 20through the channel toward the strand discharge It is to be understoodthat changes and varia- 5 h l.

6. Apparatus for handling a strand of substanparting from the spirit andscope thereof as detially continuous length comprising a rotatable 1.The method of depositing a strand of subdischarge portion offset fromits strand entrance, stant all ontinu us l n th omprising onveythedischarge portion being arranged to extend contains the approximatedirection of entrance of 36 sage about the strand entrance for directinga about a portion thereof adjacent the strand ening the strand into thechannel. trance, thereby laying the strand on thesur- 40 7. Apparatusfor handlingastrand of substanface in coiled form. tially continuouslength comprising a housing 2. The method of depositing a strand ofsubhaving apertures in its end walls, a member rostantiaily continuouslength comprising conveytatably mounted in the housing and having an ingit in a laterally enclosed fluid stream and disaxial bore concentricallydisposed with respect to charging, above a moving receiving surface, thethe apertures, an annular element projecting so that the stranddischarge portion of the stream mediate portion thereof extending at 'anangle strand entrance therebyiaying it on the surface in portionextending at an angle to all planes which coiled form with partiallyoverlapped loops. contain the axis of the bore and radiate there- 3.Apparatus for handling a strand of substanfrom to the discharge portion,and means whereby tially continuous length comprising a rotatable 5 afluid can be supplied to the interior of the housing.

alignment with the axis of rotation and a strand FREDERICK W. KOSTER.discharge portion offset from its strand entrance. the discharge portionbeing arranged to extend REFERENCES CITED at an an e to a Planes whichcontain the axis The following references are of record in the ofrotation and radiate therefrom to the discharge fil of this patent;

portion. and means for forcing a fluid stream through the channel towardthe strand discharge UNITED STATES PATENTS thereof. Number Name Date 4.Apparatus for handling a strand of substan- 854,810 Daniels May 28, 1907tlally continuous length comprising a rotatable 1,295,139 Edwards Feb.25, 1919.

